Aside from giving you quick access to Google Drive for all your documents and videos, GoDocs offers support for multiple accounts, push notifications, and more. For users who don't feel the official Google Drive app is powerful enough, GoDocs is worth a look.
GoDocs gives you access to your Google Drive files all in one app. You can also do a lot of the same things you can with the official Google Drive app including view and edit documents.
GoDocs also offers advanced features such as push notifications and support for multiple accounts. In situations where you may have more than one Google account that you store documents in, it's a good option.
While the official Google Drive app does a good job of managing your documents, some of the advanced features of GoDocs will be appreciated by pro users. I also like the interface of GoDocs over the official app as well. If you try it out, let us know what you think of it in the comments.